For the top of the line in portable comfort, look no further than the Soleus LX-140 air conditioner. It's among the industry's most efficient air conditioners available and lets you enjoy total comfort on the hottest days of the year. This 14,000 BTU AC covers medium to large rooms up to 525 square and features a 4-in-1 technology that allows it to function as an air conditioner, heater, dehumidifier and fan. It is gurenteed to satisfy your every need.